[thredds] Problems retrieving point data

[John Caron]

Hi Evan:

I's seeing the problem also, ill check to see whats going on, thanks.

John

Evan Thoms wrote:
> Greetings,
> I would like to retrieve csv files of MSL, wind direction, and wind 
> speed for specific points, that is, a sounding of forecasted wind data. 
> I am trying to subset the grid accessed through: 
> http://motherlode.ucar.edu:8080/thredds/ncss/grid/fmrc/NCEP/NAM/Alaska_11km/NCEP-NAM-Alaska_11km_best.ncd/pointDataset.html
> 
> and my query url looks like this:
> 
> http://motherlode.ucar.edu:8080/thredds/ncss/grid/fmrc/NCEP/NAM/Alaska_11km/NCEP-NAM-Alaska_11km_best.ncd?var=Wind_direction_from_which_blowing&var=Wind_speed&latitude=55&longitude=-160&time_start=2007-08-13T06%3A00%3A00Z&time_end=2007-08-24T00%3A00%3A00Z&temporal=point&time=2007-08-13T06%3A00%3A00Z&vertCoord=&accept=csv&point=true
> 
> That is, I am testing with a lat long of 55, -160,
> leaving the default Specific Time that comes up when I click the radio 
> button,
> have clicked Wind_direction and Wind_speed under 'with Vertical Levels'
> and chosen csv as the output
> 
> and yet the returned text is this:
> 
> date,lat[unit="degrees_north"],lon[unit="degrees_east"],vertCoord[unit="m"],Wind_direction_from_which_blowing[unit="degrees"],Wind_speed[unit="m 
> s-1"]
> 2007-08-13T06:00:00Z,0.0,0.0,0.0,NaN,NaN
> 
> If I query the U and V components, it's a little better, although I only 
> get one line of data, not an entire sounding through the pressure levels.
> 
> Can anyone tell me what I am doing wrong?
> 
> Also, the data getting returned are just the data stored at the nearest 
> grid node, correct? There isn't any interpolation going on is there? If 
> not, how would I query the 4 nearest grid nodes for a location so that I 
> could do an interpolation?
> 
> Thanks much for any suggestions
> Evan
>